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OC Hot Tubs
Owner’s
Manual
© 2018 OC Hot Tubs
www.ochottubsinfo.com
LTR50001045, Rev. A
10/31/17
Table of Contents
Important Safety Instructions . . . . . . . . 1 Cleaning and Maintenance . . . . . . . . . . 30
Basic Spa Information . . . . . . . . . . . . . . 2 Jet Removal and Replacement . . . . . . . . . 30
Draining Your Portable Spa . . . . . . . . . . . . 31
Preparing for Your New Portable Spa . . 3
Winterizing (Cold Climate Draining) . . . . . 32
Pre-Delivery Checklist . . . . . . . . . . . . . . . . . 3
Cleaning and Replacing the Filter . . . . . . . 32
Planning the Best Location . . . . . . . . . . . . . 3
Spa Cover . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Preparing a Good Foundation . . . . . . . . . . . 4
Vacation Care . . . . . . . . . . . . . . . . . . . . . . . 33
240 Volt Electrical Installation . . . . . . . . . . 4
Cleaning Your Spa . . . . . . . . . . . . . . . . . . . 33
Testing the 240 Volt GFCI Breaker . . . . . . . 4
Using the Freedom Sound System . . . . . . . 34
GFCI Hook-up . . . . . . . . . . . . . . . . . . . . . . . . 5
Appendix . . . . . . . . . . . . . . . . . . . . . . . . 35
Filling and Powering Up Your Portable Spa 6
Priming the Pump . . . . . . . . . . . . . . . . . . . . . 9 Replacement Parts . . . . . . . . . . . . . . . . . . . 35
NEO two-pump system . . . . . . . . . . . . . . . 10 Basic Troubleshooting . . . . . . . . . . . . . . . . 37
Limited Warranty . . . . . . . . . . . . . . . . . . . . 40
Operating Your Spa . . . . . . . . . . . . . . . 10
Warranty Registration . . . . . . . . . . . . . . . . 42
Control Panel Operation . . . . . . . . . . . . . . . 10
Control Panel Quick Reference . . . . . . . . . 11
Adjustable Jets . . . . . . . . . . . . . . . . . . . . . . 16
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . 17
Waterfalls . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Cover Latches . . . . . . . . . . . . . . . . . . . . . . . 18
Water Quality Terms and Definitions . . . . 19
Water Testing Methods . . . . . . . . . . . . . . . 20
Adding Chemicals To The Spa Water . . . . . 21
1. Balancing the Water Chemistry Levels . 21
2. Sanitation and Shock . . . . . . . . . . . . . . . 23
3. Filtration . . . . . . . . . . . . . . . . . . . . . . . . . 24
4. Regularity (Maintenance Schedule) . . . 25
Generic Names for Chemicals . . . . . . . . . . 25
Common Water Chemistry Questions . . . . 26
Do’s and Don’ts . . . . . . . . . . . . . . . . . . . . . . 27
Bather Load . . . . . . . . . . . . . . . . . . . . . . . . . 28
Ozonator . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Troubleshooting Water Clarity Problems . 29
Customer Service Contact Information
For customer service questions and information please
contact us:
Toll Free: 1-800-225-7727
OR
e-mail: customerservice@ochottubsinfo.com
Due to continuous improvement programs, all models, operation, and/or Monday-Friday 8:00am - 4:30pm PST
specifications are subject to change without prior notice.
LTR50001045, Rev. A
10/31/17
www.ochottubsinfo.com
Important Safety Instructions 1
Read This First!
READ AND FOLLOW ALL INSTRUCTIONS.
DANGER -- Risk of accidental drowning: DANGER -- Risk of electric shock:
Do not allow children to be in or around a spa unless a Install the spa at least 5 feet (1.5 meters) from all metal
responsible adult supervises them. Keep the spa cover surfaces. As an alternative, a spa may be installed within 5
on and locked when not in use. See instructions enclosed feet of metal surfaces if each metal surface is permanently
with your cover for locking procedures. bonded by a minimum #8 AWG solid copper conductor to
the outside of the spa’s control box.
DANGER -- Risk of injury:
Do not permit any external electrical appliances, such as
The suction fittings in this spa are sized to match the lights, telephones, radios, televisions, and etc., within five
specific water flow created by the pump. Should the need feet (1.5 meters) of the spa. Never attempt to operate any
arise to replace the suction fittings, or the pump, be sure electrical device from inside the spa.
the flow rates are compatible.
Replace a damaged power cord immediately.
Never operate the spa if the suction fitting or filter baskets
are broken or missing. Never replace a suction fitting with Do not bury the power cord.
one that is rated less than the flow rate marked on the Connect to a grounded, grounding-type receptacle only.
original suction fitting.
WARNING -- To reduce the risk of injury:
The spa water should never exceed 104˚F (40˚C). Water spa use may lead to unconsciousness, with the possibility
temperatures between 100˚F (38˚C) and 104˚F (40˚C) of drowning.
are considered safe for a healthy adult. Lower water
Persons suffering from obesity, a medical history of heart
temperatures are recommended for young children and
disease, low or high blood pressure, circulatory system
when spa use exceeds 10 minutes.
problems or diabetes should consult a physician before
High water temperatures have a high potential for causing using the spa.
fetal damage during pregnancy. Women who are pregnant,
Persons using medications should consult a physician
or who think they are pregnant, should always check with
before using the spa since some medications may induce
their physician prior to spa usage.
drowsiness while others may affect heart rate, blood
The use of alcohol, drugs or medication before or during pressure and circulation.
HYPERTHERMIA DANGER:
Prolonged exposure to hot air or water can induce • Failure to perceive heat
hyperthermia. Hyperthermia occurs when the internal
• Failure to recognize the need to exit spa or hot tub
temperature of the body reaches a level 3˚F to 6˚F above
the normal body temperature of 98.6˚F (or 2˚C to 4˚C • Unawareness of impending hazard
above 37˚C). While hyperthermia has many health benefits,
it is important not to allow your body’s core temperature to • Fetal damage in pregnant women
rise above 103˚F (39.5˚C). • Physical inability to exit the spa
Symptoms of excessive hyperthermia include dizziness, • Unconsciousness
lethargy, drowsiness and fainting. The effects of excessive
hyperthermia may include: WARNING: The use of alcohol, drugs, or medication can
greatly increase the risk of fatal hyperthermia.
WARNING: People with infectious diseases should not use WARNING: Do not use a spa or hot tub immediately
a spa or hot tub. following strenuous exercise.
WARNING: To avoid injury, exercise care when entering or WARNING: Prolonged immersion in a spa or hot tub may
exiting the spa or hot tub. be injurious to your health.
WARNING: Do not use drugs or alcohol before or during CAUTION: Maintain water chemistry in accordance with
the use of a spa or hot tub to avoid unconsciousness and manufacturer’s instructions.
possible drowning.
SAVE THESE INSTRUCTIONS.
OC Hot Tubs Owner’s Manual
LTR50001045, Rev. A
2
Basic Spa Information
The following operating and maintenance instructions are usage temperature when not in use. One or two hours
Read This First!
very important and must be followed carefully. With the before use, set the temperature to the desired temperature.
proper care and maintenance, your spa will provide you with
years of satisfaction and performance. If the spa usage exceeds two hours a week, the set
temperature should remain at the desired usage temperature.
Do not be afraid to push buttons or turn knobs to learn
about your new spa, as it is built with quality materials and The air rockers should be used sparingly. When open, water
excellent craftsmanship. temperature drops quite rapidly and can also dissipate
chemicals.
Your new spa has been engineered with a high-powered
water pump that pushes water through various therapy jets, Allowing the water temperature to lower more than 10˚F
which will relax even the tightest muscles. In addition to the below the desired usage temperature and reheating it prior
water pressure, you can add air into the spa water with air to usage will cause the heater to operate longer than it
rockers located seat-side that increase the intensity of your normally would maintaining the desired temperature. Doing
massage. this will increase your operating cost and makes your heater
work more than necessary.
The filtering of this spa is very important. It will minimize
cleaning time and the amount of chemicals needed to keep The filter needs to be cleaned or changed on a regular
your spa water balanced. The two daily pre-programmed basis. This process takes only a few minutes and the result
filter cycles of two hours in duration can be increased to is increased water clarity and equipment longevity.
six hour cycles if the need arises. This can be accomplished Water level is very important to the operation of your spa.
through the topside control panel. If the water level is too low or too high, your spa will not
IMPORTANT: Keep the spa covered when not in use! operate properly. The water level should be to the middle of
the skimmer area when the spa is not being used.
• Covered spas use less electricity while maintaining a set
temperature. We recommend that your spa water be changed every 4 to
6 months. You may find the need to change your spa water
• Covering your spa will protect your spa’s finish from the more frequently with heavy use. When empty, your spa
sun’s ultraviolet rays. should be cleaned with a non-abrasive cleaner and rinsed
thoroughly.
• You are required to keep the spa covered to maintain
warranty coverage. See the section “Cleaning and Maintaining Your Spa” for
instructions on draining your spa.
• Covering your spa helps prevent children from drowning
in the spa. When filling your spa, always fill through the skimmer filter
canister. Use only regular tap water.
Your new spa comes equipped with an electric heater.
Following the directions listed below will ensure the most WARNING: DO NOT USE SOFT WATER.
efficient operation:
NOTE: This method is only for spa usage under two
hours a week.
Keep the spa’s operating temperature 5˚F below the desired
OC Hot Tubs Owner’s Manual
LTR50001045, Rev. A
Preparing for Your New Portable Spa 3
Preparing for Your New Portable Spa
Pre-Delivery Checklist
Most cities and counties require permits for exterior Before Delivery
construction and electrical circuits. In addition, some
communities have codes requiring residential barriers such Plan your delivery route
as fencing and/or self-closing gates on property to prevent Choose a suitable location for the spa
unsupervised access to the property by children. Your dealer
Lay a 5 - 8 cm deep concrete slab
can provide information on which permits may be required
and how to obtain them prior to the delivery of your spa. Install dedicated electrical supply
After Delivery
Place spa on slab
Connect electrical components
Planning the Best Location
Safety First Provide a View with Your Spa
Do not place your spa within 10 feet (3 m) of overhead
power lines. Think about the direction you will be facing when sitting in
your spa. Do you have a special landscaped area in your
yard that you find enjoyable? Perhaps there is an area
Consider How You Will Use Your Spa that catches a soothing breeze during the day or a lovely
sunset in the evening.
How you intend to use your spa will help you determine
where you should position it. For example, will you use
your spa for recreational or therapeutic purposes? If your Keep Your Spa Clean
spa is mainly used for family recreation, be sure to leave
plenty of room around it for activity. If you will use it for
relaxation and therapy, you will probably want to create a In planning your spa’s location, consider a location where
specific mood around it. the path to and from the house can be kept clean and
free of debris.
Prevent dirt and contaminants from being tracked into
your spa by placing a foot mat at the spa’s entrance where
Plan for Your Environment the bathers can clean their feet before entering your spa.
If you live in a region where it snows in the winter or rains
frequently, place the spa near a house entry. By doing
this, you will have a place to change clothes and not be
uncomfortable. Allow for Service Access
Make sure the spa is positioned so that access to the
Consider Your Privacy equipment compartment and all side panels will not be
blocked.
In a cold-weather climate, bare trees won’t provide
much privacy. Think of your spa’s surroundings during all Many people choose to install a decorative structure
seasons to determine your best privacy options. Consider around their spa. If you are installing your spa with
the view of your neighbors as well when you plan the any type of structure on the outside, such as a gazebo,
location of your spa. remember to allow access for service. It is always best
to design special installations so that the spa can still be
moved, or lifted off the ground.
OC Hot Tubs Owner’s Manual
LTR50001045, Rev. A
4
Preparing for Your New Portable Spa
Preparing a Good Foundation
Your spa needs a solid and level foundation. The area If you are installing your spa on an elevated wood deck or
that it sits on must be able to support the weight of the other structure, it is highly recommended that you consult
spa, with water and the occupants who use it. If the a structural engineer or contractor to ensure the structure
foundation is inadequate, it may shift or settle after the will support the weight of 150 pounds per square foot (732
spa is in place, causing stress that could DAMAGE YOUR kg / m2).
SPA SHELL AND FINISH.
To properly identify the weight of your new spa when full,
Damage caused by inadequate or improper remember water weighs 8.33 lbs. per gallon, or 1 kg per
foundation support is not covered by the liter. For example, an average 8’ spa holds approximately
warranty. It is the responsibility of the spa 500 gallons, or 1892 liters, of water. Using this formula, you
owner to provide a proper foundation for the will find that the weight of the water alone is 4,165 lbs, or
spa. 1892 kg. Combined with the dry weight of the spa you will
note that this spa will weigh approximately 5,000 lbs, or
Place the spa on an elevated 3 to 4” / 30 cm concrete slab.
2267 kg, when full of water.
Pavers, gravel, brick, sand, timbers or dirt foundations are
not adequate to support the spa.
We strongly recommend that a qualified, licensed
contractor prepare the foundation for your spa.
If you are installing the spa indoors, pay close attention
to the flooring beneath it. Choose flooring that will not be
damaged or stained.
240 Volt Electrical Installation
All 240V spas must be permanently connected (hard wired) The power supplied to the spa must be on a dedicated
to the power supply. See the GFCI and wiring requirements GFCI protected circuit as required by NEC 70 with no
on page 4. other appliances or lights sharing the power.
These instructions describe the only acceptable Use copper wire with THHN insulation. Do not use
electrical wiring procedure. Spas wired in any other aluminum wire.
way will void your warranty and may result in serious Wires that run over 100 feet must increase wire gauge to
injury. the next lower number. For example: A normal 50 amp
When installed in the United States, the electrical wiring of GFCI with four #6 AWG copper wires that run over 100
this spa must meet the requirements of NEC 70 and any feet would require you to go to four #4 AWG copper wires.
applicable local, state, and federal codes.
The electrical circuit must be installed by an
electrical contractor and approved by a local building
or electrical inspector.
Failure to comply with state and local codes may
result in fire or personal injury and will be the sole
responsibility of the spa owner.
Testing the 240 Volt GFCI Breaker
Test the GFCI breaker prior to first use and periodically when the spa is powered. To test the GFCI breaker follow these
instructions (spa should be operating):
1. Press the TEST button on the GFCI. The GFCI will trip and the spa will shut off.
2. Reset the GFCI breaker by switching the breaker to the full OFF position, wait a moment, then turn the breaker back
on. The spa should have power again.
OC Hot Tubs Owner’s Manual
LTR50001045, Rev. A
5
Preparing for Your New Portable Spa
GFCI Hook-up
See the Pre-Delivery Guide for more information on spa placement for service access
and electrical service.
OC Hot Tubs Owner’s Manual
LTR50001045, Rev. A
6
Preparing for Your New Portable Spa
Filling and Powering Up Your Portable Spa
1. Inspect the spa equipment.
Inspect all plumbing connections in the • Make sure unions in the equipment pack are tight. (Be careful
equipment area of your spa. not to over-tighten the plumbing fittings.)
• If your spa has gate
valves, make sure they
are all in the UP or OPEN
position.
• Make sure the drain
valve is closed and
capped. (See page 31 for
a description of drain
valves.)
Never run the spa with the gate valves closed or without
water circulating for long periods of time.
2. Remove the cartridge from the canister.
If you have a skimmer like this:
Rotate and remove the black locking ring. Remove the
black skimmer cap and barrel, grip the filter by the
handle and unscrew it from the canister.
Replace and lock the locking ring and slide the skimmer
cap and barrel back in the canister.
Note: The skimmer cap and barrel were locked in place
at the factory to prevent damage during shipment. It
must be unlocked and replaced in the filter canister so that
it can float when the spa is filled. If you do not remove the
cap and barrel, your spa’s filtration system will not perform
as it was designed to.
Teleweir filter
skimmer
• 50 square feet
filtration
• Spoked cap
After you remove the filter, remove the plastic wrapper and soak it in water for 30 minutes before you
replace it. A dry filter can allow air into the filtration system which can cause the pump to fail to prime.
OC Hot Tubs Owner’s Manual
LTR50001045, Rev. A
7
Preparing for Your New Portable Spa
3. Fill the spa.
Place a garden hose in the filter canister and fill your spa.
Always fill the spa through the filter canister. Failure to do so may cause air to be trapped in the filtration system and
prevent the pumps from operating properly.
Fill the spa until water level is about six inches from the top.
If the water level is too low or too high, your spa will not
operate properly.
Never fill your spa with soft water.
Soft water makes it impossible to maintain the proper water chemistry and may cause the water to foam, which
will ultimately harm the finish of the spa and void your warranty.
OC Hot Tubs Owner’s Manual
LTR50001045, Rev. A
8
Preparing for Your New Portable Spa
4. Turn on power to the spa.
When the spa is filled to the correct level, turn on the power at
the GFCI breaker. (Ensure that the 240V spas are connected to
the proper electrical outlet.)
5. Prime the pump.
Your spa will perform a self-diagnostic check and go into Priming
Mode. The control panel will display either RUN PUMPS PURG
AIR --- or Priming Mode, depending on which control panel
you have.
Do the following:
Press the WARM/UP or COOL/DOWN button once to start the
pump in low speed. Press it again to switch the pump to high
speed.
Running the pumps helps the pumps prime.
After two minutes, the pump should prime. If it does not, follow the priming instructions on the next page. If it does,
continue with the next step.
6. Install the filter into the filter canister. 7. Adjust water chemistry.
Make sure the filter has soaked at least 30 minutes Test and adjust the water chemistry. See the section on
before you install it. page 19 for instructions on keeping your water clear.
8. Let the spa heat up.
When the spa has finished priming, the heater will
activate. Put the cover on and let the spa heat to the set
temperature.
OC Hot Tubs Owner’s Manual
LTR50001045, Rev. A9
Preparing for Your New Portable Spa
Priming the Pump
New spa owners often have difficulty the first time they start their spa
The pump will not work
and the pump fails to prime. This can be frustrating, but these simple
properly while air is trapped in it.
instructions can help you.
Continuing to operate the pump
Sometimes air can become trapped in the pump while filling the spa. You in this way will cause damage.
will know this has happened when after you have filled and started the spa,
the pump does not seem to function. You will hear the pump operating, but no water will be moving.
Starting Up: Priming Mode for Neo-Pack Systems
The system will enter the priming mode. Priming Mode turned on and off to help prime the pump. The system will
will display on the control panel. In Priming Mode, all exit Priming Mode and go to the Main display when the
devices such as jets and lights are operable. Jets can be RETURN button is pressed, or after four minutes of activity.
Exiting Priming Mode for Neo-Pack Systems
You can manually exit Priming Mode by pressing the terminated after 4 to 5 minutes. Be sure that the pumps
RETURN button. Note that if you do not manually exit the have been primed by this time.
priming mode, the priming mode will be automatically
Bleeding Air from the Pump
If you have tried priming the pump several times unsuccessfully using the
control panel, you can bleed the air from the pump manually.
1. Shut off the power to the spa.
2. Using a Phillips screwdriver, remove the front panel from the spa and
locate the pump.
3. Close the gate valve on the discharge side of the pump (if your spa is
installed with one.)
4. Turn the bleeder valve counter clockwise with a small pair of pliers until
the air has been released from the pump.
5. If this is unsuccessful, loosen the union nut on side of the pump with
channel locks. When air is bled out, tighten the nut.
6. Turn on power to the spa and press the UP button. If there is still air
trapped in the pump, repeat steps 2 through 5 until the pump primes.
OC Hot Tubs Owner’s Manual
LTR50001045, Rev. A10
Operating Your Spa
Operating Your Spa
Control Panel Operation
Primary Navigation and Functions
NEO two-pump system
OC Hot Tubs Owner’s Manual
LTR50001045, Rev. A11
Operating Your Spa
Control Panel Quick Reference
OC Hot Tubs Owner’s Manual
LTR50001045, Rev. A12
Operating Your Spa
F
F A
F
F
OC Hot Tubs Owner’s Manual
LTR50001045, Rev. A13
Operating Your Spa
Settings Screens
OC Hot Tubs Owner’s Manual
LTR50001045, Rev. A14
Error Screens
Operating Your Spa
OC Hot Tubs Owner’s Manual
LTR50001045, Rev. A15
Operating Your Spa
Other Spa Systems
Several spa functions operate in the background and require no action or maintenance from you. This is for your information
only.
Pumps
Press the “Jets 1” button once to turn pump 1 on or off, and to shift between low- and high-speeds if equipped. If left
running, the pump will turn off after a time-out period. The pump 1 low-speed will time out after 30 minutes. The high-
speed will time out after 15 minutes.
On non-circ systems, the low-speed of pump 1 runs when the blower or any other pump is on. If the spa is in Ready Mode,
Pump 1 low may also activate for at least 1 minute every 30 minutes to detect the spa temperature (polling) and then to
heat to the set temperature if needed. When the low-speed turns on automatically, it cannot be deactivated from the panel,
however the high speed may be started.
Circulation Pump
The circulation pump will come on when the system is checking temperature (polling), during filter cycles, during freeze
conditions, or when another pump is on.
The ozonator will run with the circulation pump during filtration cycles.
Purge Cycles
In order to maintain sanitary conditions, secondary Pumps and/or a Blower will purge water from their respective plumbing
by running briefly at the beginning of each filter cycle.
OC Hot Tubs Owner’s Manual
LTR50001045, Rev. A16
Operating Your Spa
Adjustable Jets
Almost all of the jets in your spa are adjustable. Rotating
the face of an adjustable jet to the left (counterclockwise)
will decrease the amount of water flow through the
jet. Rotating the face of an adjustable jet to the right
(clockwise) will increase the amount of water flow through
the jet. (See example shown here.)
Neck jets adjust in the opposite directions (counterclockwise
to increase, clockwise to decrease).
Water Diverters
Water diverter knobs are 1” and 2” knobs located around
the top of your spa. They allow you to divert water through
jets from one side of the spa to the other, or from floor jets
to wall jets. This is accomplished by rotating the knob to
the left or right to increase or decrease the flow of water
through the jets.
Air Control
The air controls is the 1” knob located around the top of
your spa. The air control will let you add a mixture of air
with the jet pressure. This is accomplished by rotating the
knob to the left or right to increase or decrease the amount
of airflow through the jets.
OC Hot Tubs Owner’s Manual
LTR50001045, Rev. A17
Operating Your Spa
LED Lighting
Press the LIGHT button on the topside control panel to turn 2. Flashing: When you are cycling through all the
the spa light on. If your spa has perimeter LED lights, they colors, the next time you push the LIGHT button, the
will also light up at the same time as the spa light. LED lights may start flashing. This is another normal
operational pattern option.
The LEDs operate in three modes:
3. Fading cycle: The next phase of operation when
1. Cycle: When you continually press the LIGHT button,
you push the LIGHT button is a slow and/or fast fade
the LEDs will cycle through the three main LED colors
random transition from one color to the next.
(Red, Green, and Blue) or combinations of the three
that produce the following colors: light green, purple, Spas with exterior corner LED lighting generally work in the
light blue, yellow, etc. same mode as described above. The variations in color and
patterns provide you with multiple options to suit almost
Each time you press the button, you immediately
any lighting preference.
advance to the next color in sequence or eventually a
different light pattern.
OC Hot Tubs Owner’s Manual
LTR50001045, Rev. A18
Operating Your Spa
Waterfalls
This spa model includes an adjustable handle-style waterfall.
Cover Latches
When your hot tub is not in use, make sure you place the cover on top and latch it securely. Besides protecting your hot
tub from sun damage and keeping out contaminants, it will prevent small children from drowning in the hot tub.
Your cover will have four clips attached to the ends of the four latches, two on each end of the hot tub cover. There will
also be a small bag with eight wood screws.
After you place the cover on the hot tub, attach the clips to the side of the hot tub using the wood screws.
OC Hot Tubs Owner’s Manual
LTR50001045, Rev. AWater Clarity
19
This section is intended for new spa owners with no Before you begin, we recommend you become familiar with
Water Clarity
experience with water chemistry. Everyone’s experience some water quality terms and their definitions (see next
with maintaining water quality is different, but there are page).
some general concepts you need to know.
Whether you’re filling your spa for the first time (see page
Water maintenance is not difficult, although it requires 6) or refilling it after draining it for regular maintenance (see
regular attention. The most important thing to understand page 31), start and maintain your spa water by following the
about taking care of your spa water is that preventive action plan we describe in this section.
is much easier than correcting water quality issues.
1 Chemical Balance 2 Sanitation and Shock
See page 21 to learn how to balance your spa water. See page 23 to learn how to use sanitizer and shock.
You will need to test and adjust Sanitizers kill bacteria and viruses
the chemical balance of your spa and keep the water clean. A low
water. Although this is not difficult, sanitizer level will allow microbes to
it needs to be done regularly. grow quickly in the spa water. We
recommend using either chlorine or
You need to test the level of
bromine as your sanitizer.
calcium hardness, total alkalinity,
and pH. You also need to add shock to the
water to stimulate the chemical sanitizer. How much you use
Spa owners with a bromine generator also need to check
and how often depend on frequency and intensity of use.
total dissolved solids and phosphates.
Spa owners with an ozonator also need to add sanitizer,
although their requirements are different.
3 Filtration 4 Regularity
See page 24 for filter cleaning instructions. See page 25 for the schedule of recommended
maintenance.
Cleaning your filter regularly is the easiest
and most effective single thing you can do to Clear water requires regular
keep your water clear. maintenance. Establish a routine based
on a regular schedule for your spa
A clogged or dirty filter will cause the heater
water maintenance.
and pump to work harder than they need to,
possibly causing them to fail. Maintaining your water quality helps
the enjoyment of your spa and extends your spa’s life by
The spa’s heating system will only function
preventing damage from neglect and chemical abuse.
with the proper amount of water flow
through the system.
Water Quality Terms and Definitions
The following chemical terms are used in this section. Understanding their meaning will help you to better understand clear
water maintenance. Words in bold type are defined in this table.
Bromine / Bromine is an efficient sanitizer chemical for spas. When used as a sanitizer, bromine forms
Bromamines compounds called bromamines. Bromine can be added to the spa or automatically generated. See
page 23 for discussion on sanitizers.
Bromamines are compounds formed when bromine combines with nitrogen from body oils,
perspiration, etc. Unlike chloramines, bromamines have no pungent odor and are effective
sanitizers.
Chlorine / Chlorine is an efficient sanitizing chemical for spas. We recommend using sodium dichlor-type
Chloramines granulated chlorine because it is totally soluble and nearly pH neutral. When used as a sanitizer,
chlorine forms compounds called chloramines. See page 23 for discussion on sanitizers.
Chloramines are compounds formed when chlorine combines with nitrogen from body oils,
perspiration, etc. Chloramines can cause eye irritation as well as having a strong odor. Unlike
bromamines, chloramines are weaker, slower sanitizers. To remove chloramines, see the
description of shock below.
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Water Clarity
Calcium Hardness Abbreviated as CH. Calcium hardness is a measure of the total amount of dissolved calcium in the
water. Calcium helps control the corrosive nature of the spa’s water and is why soft water is not
recommended. The low CH level can cause corrosion to the equipment and can cause staining
of the spa shell. See page 22 for testing for and balancing calcium hardness.
Corrosion The gradual wearing away of metal spa parts, usually caused by chemical action. Generally,
corrosion is caused by low pH or by water with levels of TA, CH, pH or sanitizer which are outside
the recommended ranges.
Dichlor Also called sodium dichlor. It is a type of chlorine and is frequently used when shocking the
water. An effective chlorine-based powdered oxidizer and sanitizer. Dichlor works by
oxidizing waste product in the water such as bromamines and chloramines and causing them
to burn off.
Monopersulphate Frequently used when shocking the water. An effective non-chlorine-based powdered oxidizer
or MPS that works well with both chlorine and bromine. It works by oxidizing waste product in the
water such as bromamines and chloramines and causing them to burn off.
Oxidizer Shocking the water with an oxidizing chemical prevents the buildup of contaminants, maximizes
sanitizer efficiency, minimizes combined chlorine and improves water clarity.
Ozone Ozone is a powerful oxidizing agent which is produced in nature and artificially. Ozone forms no
by-products of chloramines (ozone actually oxidizes chloramines) and will not alter the water’s
pH.
pH The pH level is the measure of the balance between acidity and alkalinity. Low pH causes the
water to be too acid, which will cause corrosion, whereas high pH causes the water to be too
alkaline, which will cause scaling. See page 22 for testing for and balancing pH.
ppm The abbreviation of “parts per million”, the standard measurement of chemical concentration in
water. Identical to mg/l (milligrams per liter).
Sanitizer Sanitizer is a chemical added to the water to kill bacteria and viruses and keep the water clean.
The two sanitizers we recommend are chlorine and bromine. See page 23 for discussion of
sanitation.
Scale Rough calcium-bearing deposits that can coat spa surfaces, heaters, plumbing lines and clog
filters. Generally, scaling is caused by mineral content combined with high pH. Additionally, scale
forms more readily at higher water temperatures.
Shock Also called shocking the water, shock treatment, or superchlorination. Shocking the water is
adding significant doses of dichlor or MPS to oxidize non-filterable organic waste and to remove
chloramines and bromamines. Shock treatment breaks down organic waste contaminants
which cause odor and cloudy water. See page 23 for discussion of shocking the water.
Total Alkalinity Abbreviated as TA. Total alkalinity is the measure of the total levels of carbonates, bicarbonates,
hydroxides, and other alkaline substances in the water. TA is important for pH control. If the TA
is too low, the pH will fluctuate out of control, and if it is too high, the pH becomes difficult to
stabilize. See page 21 for testing for and balancing total alkalinity.
Trichlor Used as a pool sanitizer. NEVER use trichlor in a spa. Trichlor is extremely acidic and will lower
the pH, causing corrosion to equipment. Using trichlor will void your warranty.
Water Testing Methods
There are two testing methods to choose from:
Test strips are a convenient testing method The reagent test kit is a
commonly used by spa owners. method which provides a
high level of accuracy but is
more expensive and more
difficult to use.
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Water Clarity
Adding Chemicals To The Spa Water
IMPORTANT: All spa water chemicals, including MPS (shock), chlorine, granulated pH increaser or decreaser, granulated
total alkalinity increaser, calcium hardness increaser, liquid stain and scale inhibitor, and liquid de-foamer must always be
added directly into or in front of the filter compartment while a jet pump is running, and it must run for a minimum of ten
minutes.
1. Fold back the cover.
2. Press the Jets or Jets 1 button.
3. Carefully measure the recommended amount of chemical and slowly pour it into the filter area. Use care not to splash
chemicals on your hands, in your eyes, on the spa surface, or on the siding.
4. Close the spa cover.
Warning: High sanitizer levels can cause discomfort to the user’s eyes, lungs and skin. Always allow the sanitizer level to
fall to the recommended range before using the spa.
IMPORTANT NOTE REGARDING SHOCK TREATMENT: After administering shock to your spa, leave the cover open for
a minimum of 20 minutes to allow the oxidizer gas to vent. A high concentration of trapped oxidizer gas which may exist as
a result of the shock treatment (not daily sanitation) may eventually cause discoloration or vinyl degradation to the bottom
of the cover. This type of damage is considered chemical abuse and is not covered under the terms of the limited warranty.
1. Balancing the Water Chemistry Levels
Maintaining spa water chemistry can be tricky, especially since there are many methods of keeping your water clear and
clean. Follow the maintenance schedule on page 25 to determine how often you should test your water.
We do not recommend any brand of chemical. See page 25 for a table of common chemicals used in spas and their
generic equivalents.
See a spa dealer for guidance and recommendations on spa chemicals and supplies. Various chemicals often sold under
brand names, but a spa dealer can advise you on generic chemicals that are often much less costly than proprietary brands.
Balancing the Total Alkalinity (TA)
Total Alkalinity is a measure of the total levels of carbonates, TA too high 180
bicarbonates, hydroxides, and other alkaline substances in the water. Add an alkalinity
TA is referred to as the water’s “pH buffer”. In other words, it’s a
pH will be too high 160 decreaser
and may be difficult
measure of the ability of the water to resist changes in pH level. to stabilize pH 140
120
If the TA is too low, the pH level will fluctuate widely from high to TA
low. Fluctuations in pH can cause corrosion or scaling of the spa balance
100 Ideal TA balance
components. Low TA can be corrected by adding sodium carbonate 80
(pH/Alkalinity Up). 60
TA too low Add an alkalinity
If the Total Alkalinity is too high, the pH level will tend to be high and pH will fluctuate 40 increaser
may be difficult to bring down. It can be lowered by using sodium wildly
20
bisulfate(pH/Alkalinity Down).
CH too high 275
Once the TA is balanced, it normally remains stable, although the addition of more water with a high or low alkalinity
Dilute the spa will
raise or lower the TA reading of the water. Causes scale to 250 with soft water
deposit on spa and
225
When the Total Alkalinity is within the recommended range, proceed to theequipment
next step.
200
CH 175 Ideal CH balance
balance
150
125
OC Hot Tubs Owner’s Manual CH too low Add a calcium
100 hardness increaser
LTR50001045, Rev. A Causes equipment
corrosion 75
pH too high 8.2
Add a pH
Too alkaline, causes 8.0 decreaserto stabilize pH 140
120
TA
balance
100 Ideal TA balance
22 80
TA too low 60
Add an alkalinity
pH will fluctuate 40 increaser
Water Clarity
Balancing the Calcium Hardness (CH) wildly
TA too high
20
180
Add an alkalinity
Calcium Hardness is a measure of the total amount of dissolved pH will be too high 160
275 decreaser
CH
andtoo high
calcium in the water. Calcium helps control the corrosive nature of the may be difficult Dilute the spa
to stabilize
Causes scalepHto 140
250
spa’s water. That’s why calcium-low water (commonly known as “soft” with soft water
deposit on spa and 120
water) is not recommended. It is very corrosive to the equipment, and equipment 225
TA
can cause staining of the spa shell. balance
100
200 Ideal TA balance
CH 80
175 Ideal CH balance
If the CH is too high (commonly known as “hard water”), formation of balance
scale on the spa’s shell surface and equipment can result. You can use TA too low 60
150 Add an alkalinity
a generic calcium remover to remove hardness from water. CH can pH will fluctuate 40
125 increaser
also be decreased by dilution – a mixture of 75% hard and 25% soft wildly
CH too low Add a calcium
20
100 hardness increaser
water will usually yield a reading within the correct range. If soft water Causes equipment
is not available or practical for you, a stain and scale inhibitor should corrosion 75
275
CH too high
Dilute the spa
be added to the spa water, according to label instructions. Causes scale to 250 with soft water
pH too high 8.2
deposit on spa and Add a pH
If the CH is too low add CH Increaser. Too alkaline, causes
equipment 225
8.0 decreaser
scaling
Once the CH is balanced, it normally remains stable, although the addition of more water 200
with
7.8 a high or low calcium
CH 175
content will raise or lower the CH reading of the water. 7.6 Ideal CH balance
balance
pH 150
7.4
When the CH is within the recommended range, proceed to the next step. Ideal pH balance
balance 125
CH too low
7.2 Add a calcium
100
7.0 hardness increaser
Causes equipment
Balancing the pH pH too low
corrosion 75
6.8
Add a pH
Too acidic, causes increaser
The pH level is the measure of acidity and alkalinity. Values above
corrosion 6.6
8.2
pH too high
Add a pH
7.8 are alkaline; those below 7.2 are acidic. Maintaining the proper Too alkaline, causes 8.0 decreaser
pH level is extremely important for optimizing the effectiveness of scaling
7.8
the sanitizer, maintaining water that is comfortable for the user, and
preventing equipment deterioration. 7.6
pH 7.4 Ideal pH balance
If the spa water’s pH level is too low, the following may result: balance
7.2
• The sanitizer will dissipate rapidly. 7.0
pH too low Add a pH
• The water may become irritating to spa users. Too acidic, causes 6.8 increaser
• The spa’s equipment may corrode. corrosion 6.6
If the pH is too low, it can be increased by adding sodium hydrogen
carbonate (pH/Alkalinity Up) to the spa water.
If the pH level is too high, the following may result:
• The sanitizer is less effective.
• Scale will form on the spa shell surface and the equipment.
• The water may become cloudy.
• The filter cartridge pores may become obstructed.
If the pH is too high, it can be decreased by adding sodium bisulfate (pH/Alkalinity Down) to the spa water.
NOTE: After adding sodium hydrogen carbonate or sodium bisulfate, wait two hours before testing the water for pH.
Measurements taken too soon may not be accurate.
It is important to check the pH on a regular (weekly) basis. The pH will be affected by the bather load, the addition of
new water, the addition of various chemicals, and the type of sanitizer used.
When the pH is within the recommended range, proceed to sanitation.
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Water Clarity
2. Sanitation and Shock
Sanitizers kill bacteria and other organic waste by breaking Whenever you test your chemical levels, your test strip will
them down to non-harmful levels which are filtered out. likely have a test for chlorine or bromine. Make sure your
Before you fill your spa, you need to decide which chemical sanitizer falls within the range shown below.
sanitizer you wish to use. Consult your dealer for the right
decision with regards to your lifestyle and spa usage. Testing For: Ideal Range (ppm)
We recommend either bromine or chlorine as your Minimum Maximum
sanitizer. Both work well when maintained regularly. Chlorine Level
DO NOT use Trichlor. Trichlor is very acidic and Without ozonator 3.0 5.0
the hot temperature of the spa causes it to
dissolve too quickly. It will cause damage to With ozonator 2.0 4.0
your spa and will void your warranty. Bromine Level
Whichever plan you decide on, follow it completely and don’t Without ozonator 6.7 11.0
take shortcuts. It will provide you with clean, safe, clear
spa water with a minimum of effort. Spa owners with an With ozonator 5.7 10.0
ozonator still need to use a chemical sanitizer. See page 28 for
a description of how the ozonator works.
Starting and Maintaining Sanitizer Levels
Sanitizing your spa with chlorine or bromine is very similar. Starting with fresh water:
Each sanitizer has its advantages and disadvantages.
1. Establish a baseline by adding either granulated chlorine
Bromine: Whereas chlorine can sometimes cause or bromine.
offensive odors and skin irritation, bromine is less likely • Use half an ounce of chlorine for every 500 gallons
to do so. Additionally, unlike chlorine, when bromine of water.
combines with bather waste and other contaminants in • Use half an ounce of bromine for every 100 gallons
the water, it remains a very effective sanitizer. Bromine of water.
is also far less pH-dependent than chlorine. Always
2. Run the jets for 10 minutes.
remember that bromine by itself is not a sanitizer,
and it needs to be activated by shock in order to 3. Test the water. Make sure the pH, TA, and CH levels
be effective. all fall within the ranges shown on the previous page.
Make adjustments where they are needed.
Chlorine: The most commonly recognized sanitizer is
chlorine. However, the effectiveness of chlorine depends 4. At this point, if you use bromine, it is not yet activated
heavily on the pH level of the spa water. In order to get and it will not sanitize the water. You need to
the most effective and economical benefit of chlorine, you shock-oxidize the spa water. Depending on the size of
must maintain a consistent pH level of between 7.2 to 7.6. your spa, add one to two ounces of shock. You can use
A disadvantage of using chlorine is that when chlorine any kind of shock you want.
combines with bather waste and other contaminants in
the water, not only does it lose its sanitizing ability, it can 5. Test the water again. When the water is balanced, your
cause odors and irritate eyes and skin. spa is ready to use.
After you choose a sanitizer, you will need to establish a Note: If you choose to use bromine, we do not recommend
baseline and maintain it regularly. using a floater. You have more control over the bromine level
by adding bromine as needed. For more discussion on this,
see page 26, “Common Water Chemistry Questions”.
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Water Clarity
Shocking the Water
In addition to using a chemical sanitizer, you will periodically If irritating chloramines are present, shocking also converts
need to shock the water. Shocking helps refresh the water them back to active chlorine. If you use bromine sanitizer,
by breaking down organic waste contaminants which shocking activates the bromide ion (which by itself has no
cause odor and cloudy water. After treatment, water disinfecting capability) which becomes hypobromous acid in
quality and clarity is often completely restored. water, a good sanitizer.
The two types of shock are sodium dichlor and potassium Add one ounce of oxidizer shock once a week, after
monopersulfate (MPS). You can use either type of shock heavy bather loads, or if water has a strong odor.
regardless of which sanitizer you use. Even if you use
Spa must be running with all of the jets on high for 30
bromine, you can use a chlorinated shock if you wish -- in
minutes with the cover open. If necessary, repeat shock in
fact, you may find a chlorinated shock is more effective
30 minute intervals.
than dichlor or MPS alone.
3. Filtration
The filter is the part of your spa that removes the debris from the water and needs to be cleaned on a regular basis to
maximize your spa’s filtering performance and heating efficiency.
It is extremely important that you never run the spa without a filter. There is a possibility that debris may
be sucked into the plumbing through the filter well.
Changing the Default Filtration Setting
We recommend you trying different times and durations for the filter cycles until you find a filtration plan that works for
you.
Cleaning the Filter
In addition to spraying off the filter weekly to remove surface debris, your filter should be deep cleaned periodically to
dissolve scale and particles that get lodged deep within the filter fibers and impede the filtration process. Even if the filter
looks clean, scale and particles can clog the fibers and prevent water from flowing through the filter resulting in the most
common spa problem—no heat, caused by a dirty filter.
We recommend you clean your filter at least once a month, possibly every two weeks depending on how frequently you
use your spa, and replace it once a year or as necessary. See page 32 for instructions on removing and cleaning the filter.
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Water Clarity
4. Regularity (Maintenance Schedule)
Prior to each use Test the spa water. Adjust chemical levels as necessary.
Shock the water by adding ½ teaspoon of sodium dichlor per 250 gallons or 1 teaspoon
of MPS per 250 gallons.
After each use Add an ounce of oxidizer after heavy bather loads (see page 24 on shocking the water).
Once a week Check the filter well and inside the filter pipe for leaves and foreign matter.
Test the spa water. Adjust chemical levels as necessary.
Shock the water by adding ½ teaspoon of sodium per 250 gallons or 3 teaspoons of
MPS per 250 gallons.
If your water source is high in calcium, add stain and scale preventer.
Every two to four weeks Deep clean your spa’s filter (see page 32). How often you clean your filter depends on
how much you use your spa. There is no harm in frequently cleaning your filter and
will only help your spa’s efficiency.
Every two to four months Change the spa water. How often you change the water depends on how much you
use the spa. When you change the water, you will need to:
• Clean and polish the acrylic surface (see page 33)
• Clean and treat the spa cover and pillows (see page 33)
• Deep clean the filter (see page 32)
• Refill your spa (see page 6)
Each time you refill the spa Follow the section “Filling and Powering Up Your Portable Spa” on page 6.
Once a year Replace filter cartridges if the pleats appear frayed (see page 32).
Generic Names for Chemicals
Water Chemistry
Common name Usual chemical name Common brand names
pH Up sodium hydroxide pH Increaser, pH Up, pH Plus, pH Booster
pH Down sodium bisulfate pH Decreaser, pH Down, pH Minus, pH
sodium bicarbonate (baking soda) Subtractor, Dry Acid
sodium carbonate
Alkalinity increaser sodium carbonate Alkalinity Increaser, Alkaline Up
sodium bicarbonate (baking soda)
Alkalinity decreaser sodium bisulfate Alkalinity Decreaser, Alkaline Down
Calcium increaser calcium chloride Calcium Increaser, Calcium Up, Calcium Plus,
Hardness Increaser
Calcium decreaser N/A To decrease calcium hardness, drain several gallons of water from the spa and
refill using a mixture of 75% hard water and 25% soft water, or use a stain and scale
inhibitor.
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Water Clarity
Sanitizers
Common name Usual chemical name Common brand names
Chlorine sodium dichlor Both chlorine and bromine are available
Bromine sodium bromide under numerous brand names
Shock
Common name Usual chemical name Common brand names
MPS monopersulphate MPS Shock, Oxy-Spa, SeaKlear
Dichlor sodium dichlor Dichlor Shock
Note: Dichlor (chlorine) is both a sanitizer and a shock. Monopersulphate (MPS), when used as a shock, can be purchased
alone as non-chlorinated shock or combined with dichlor, which makes it significantly more effective than MPS alone.
Other chemical additives
Common name Usual chemical name Common brand names
Stain and scale inhibitor These are usually proprietary Metal Stain Gone, Scale Inhibitor, Stain and
chemical formulations and cannot Scale Preventer, Stain and Scale Defense
Foam inhibitor be purchased as a single generic Foam Gone, Foam Down, Defoamer
chemical.
Clarifier Water Brite, Spa Bright, Water Clarifier, Clear
Water, Natural Clarifier, Brite & Clear
Do NOT use these in your spa:
• Sodium hypoclorite (household bleach) • Borax or boric acid in any form, including
brand names such as 20 Mule Team Borax
• Trichlor
or generic as sodium tetraborate
• Chemical floaters
• Cyanuric acid, also called sun protector or
• Bromine tablets chlorine protector
• Muriatic acid
Common Water Chemistry Questions
Question: Why is the use a floater not recommended to sanitize my spa water?
Answer: We do not recommend the use of a floater for three reasons:
• The floater is unable to control the rate at which the sanitizer is dissolved into the water. When a floater
is first placed in a spa, the sanitizer level can be extremely high. High sanitizer levels can chemically burn
or discolor the spa’s shell or the underside of the cover. Then, after a period of time, the sanitizer level
dispensed by the floater will fall to near zero. A low sanitizer level will allow viruses, bacteria or algae to
grow.
• Floaters tend to stay in one area of the spa most of the time, causing this area to be exposed to extreme
sanitizer levels.
• The floater may allow pieces of the highly concentrated sanitizer to fall out and settle on the floor or seat
of the spa shell. These pieces of sanitizer will chemically burn (blister) the spa shell. Although your spa
shell is specifically designed to resist the effects of spa chemicals, no spa surface can withstand this type
of highly concentrated chemical. Remember, chemical abuse is specifically not covered under the terms
of the warranty.
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LTR50001045, Rev. A27
Question: When I open my spa, I smell chlorine. How do I get rid of this smell?
Water Clarity
Answer: There are two types of chlorine in your spa. The first is the Free Available Chlorine, which is the chlorine
available to sanitize your spa. This free Available Chlorine does not have an odor. The second is Chloramine,
which is residue from chlorine already expended. Chloramines have a strong chlorine odor. The smell from
Chloramines can be eliminated by shocking the water. If you smell chlorine in the water, your spa is reminding
you to add a shock treatment.
Question: Why can’t I fill my spa with soft water?
Answer: Soft water is essentially the same as regular water, except that most or all of the calcium has been replaced
by sodium. Soft water may be corrosive to the heater and other components. Replacement of spa components
damaged by soft water is extremely expensive.
Question: I am trying to reduce the number of chemicals to which my family is exposed. Do I really need to use so many
chemicals and in such large amounts?
Answer: While over-exposure to any chemical can be unhealthy, many low levels of chemicals are effective and
beneficial. In the case of spa water, the chemicals we recommend are needed to protect the user from water-
borne pathogens (disease-causing microbes) and to prevent corrosion of spa components.
Question: Why isn’t water chemistry damage covered by the warranty?
Answer: The chemical levels and water quality of the water in the spa are under your direct control. With proper basic
care, the spa will provide many years of hot water relaxation. If you are unsure about any chemical or its
usage in the spa, contact your spa dealer.
Do’s and Don’ts
• DO add all chemicals slowly into or in front of the filter compartment with the jet pump operating for ten minutes.
• DO use special care if using baking soda to clean either the interior or exterior plastic surfaces.
• DO use only a granular form of bromine sanitizer.
• DON’T use swimming pool (muriatic) acid to lower pH.
• DON’T splash pH increaser additives on the siding.
• DON’T use compressed sanitizers.
The use of bromine sticks or tablets in floaters, which may become trapped in a lounge or cooling seat (or sink to the
spa floor), have been shown to cause discoloration of or surface distress to a spa’s shell.
• DON’T use a floater type sanitization system as a low or no maintenance solution to your spa maintenance program.
Floating dispensers can become trapped in one area and cause an over-sanitization (or chemical burn) of that particular
area.
If the dispenser setting is too high, the high concentration can discolor the spa shell and damage the underside of the
cover.
Automatic floating dispensers have a tendency to either over-brominate or under-brominate as the rate of erosion
varies greatly. Damage to the spa and cover can occur very quickly.
• DON’T use a sanitizer which is not designed for spas.
• DON’T use household bleach (liquid sodium hypochlorite).
• DON’T broadcast or sprinkle the chemicals onto the water surface. This method may cause chemically-induced spa
surface blistering (chemical abuse).
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Water Clarity
Bather Load
“Bather Load” is the term used to describe the number of people using a spa, combined with the length of usage, and the
frequency of usage. All these factors have a great effect on the spa water. The higher the bather load, the more chemicals
need to be added and a longer filtration time will be needed.
Recommendations are designed for spas with average bather load (3 to 4 people, 15 minutes of usage, three times a week at
100 degrees) If your bather load exceeds these guidelines, and you experience water quality problems, increase the amount
of filtration first, (go to the next higher filtration number) then if water quality is still not adequate, consult the advice of your
dealer for additional chemical or system recommendations. Be sure to give them your bather load information.
Ozonator
The ozone generator releases ozone into the spa water. You will still need to test for chlorine or bromine and occasionally
replenish it to return the sanitizer level to the baseline. See page 21.
For spas without a circulation pump, pump 1 will run at low speed and the ozonator will run during filtration. You will need
to increase your filtration to a minimum of six hours per day.
For spas with a circulation pump, the ozonator will run with the circulation pump.
The spa’s control system is factory-programmed with one filter cycle that will run in the evening when energy rates are often
lower. The time and duration of the filter cycle can be set according to your needs. In addition, a second filter cycle can be
enabled. Filtration time may need to be increased with heavy bather load.
See instructions for setting filtration cycles on page 13.
Always make sure water diverter valves are turned all the way to the left or right and never left in the center position during
filtration cycles. When the diverter valve is in the center position, there is not enough suction from the pump in order to
inject ozone into the spa. The ozonator will generate ozone, but it will not be injected into the water.
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Water Clarity
Troubleshooting Water Clarity Problems
Problem Probable Causes Possible Solutions
Dirty filter Clean filter and run jet pump
Excessive oils / organic matter Shock spa with sanitizer
Improper sanitization Add sanitizer
Cloudy Water
Suspended particles / organic Adjust pH and/or alkalinity to recommended range
matter
Overused or old water Drain and refill the spa
Excessive organics in water Shock spa with sanitizer
Water Odor Improper sanitization Add sanitizer
Low pH Adjust pH to recommended range
Chloramine level too high Shock spa with sanitizer
Chlorine Odor
Low pH Adjust pH to recommended range
Bacteria or algae growth Shock spa with sanitizer – if problem is visible or
Musty Odor
persistent, drain, clean and refill the spa
Organic Buildup / Buildup of oils and dirt Wipe off scum with clean rag – if severe, drain the
Scum Ring Around spa, use a spa surface and tile cleaner to remove
Spa the scum and refill the spa
High pH Shock spa with sanitizer and adjust pH
Algae Growth Low sanitizer level Shock spa with sanitizer and maintain sanitizer
level
Low pH Adjust pH
Eye Irritation Low sanitizer level Shock spa with sanitizer and maintain sanitizer
level
Unsanitary water Shock spa with sanitizer and maintain sanitizer
Skin Irritation / level
Rash Free chlorine level above 5 ppm Allow free chlorine level to drop below 5 ppm
before spa use
Total alkalinity and/or pH too low Adjust total alkalinity and/or pH
Stains
High iron or copper in source water Use a stain and scale inhibitor
High calcium content in water – Adjust total alkalinity and pH – if scale requires
total alkalinity and pH too high removal, drain the spa, scrub off the scale, refill the
Scale spa and balance the water
Use a stain and scale inhibitor
OC Hot Tubs Owner’s Manual
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